a day before his retirement becomes official. we have a report from james mates of "independent television news." >> reporter: a final ride on the popemobile into the crowds on st. peter's square. a last baby to kiss. there is no protocol on how to leave the office of pope because no living pope has done so for 600 years. but benedict xvi decided he was not going to go quietly. for ten days there have been rumors that he stood down not just because of ill health, but because of power struggles in the vatican. in his farewell address in front of 50,000 in the square and millions more on t.v., he confirmed all had not been well. "there were also moments that were not easy," he said. "i felt like st. peter and the apostles and the boat on the sea of galilee. the lord gave as many days of light winds when the fish were abundant but also times when the waters were stormy and the winds were against us and the lord seemed to be sleeping." sitting just feet away were the the tens of thousands of pilgrims and the simply curious who heard